{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "DESIGN : We studied the relation between vitamin C intake and mortality from total cardiovascular disease ( n = 281 ) , coronary artery disease ( n = 175 ) , and stroke ( n = 57 ) in 1923 postmenopausal women who reported being diabetic at baseline ."}
{"Disease": ["cardiovascular disease", "coronary artery disease", "stroke", "diabetic"], "Chemical": ["vitamin C"]}